#test{
    width:400px;
    height: 400px;
    .box{
       width: 200px;
       height: 400px;
       background-image: url('../assets/alipay.png');
       background-size: 100% 100%;
       background-repeat: no-repeat;
    }
    .box1{
        background-image: url('../assets/light_bg.png');
    }
}